[Bug 109539] System freezing - bugzilla-daemon

From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 109539] System freezing
Date: Sun, 03 Feb 2019 20:36:56 +0000	[thread overview]
Message-ID: <bug-109539-502@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=109539

            Bug ID: 109539
           Summary: System freezing
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: jon780@gmail.com

Created attachment 143282
  --> https://bugs.freedesktop.org/attachment.cgi?id=143282&action=edit
journalctl

Fedora 29
kernel 4.20.5 (compiled to try something newer than in the fedora repos)
Ryzen 1700X
MSI B350 Tomawhawk (Arctic)
Three Dell U2415 monitors (one dvi, one hdmi, one displayport).

Freezing when waking from sleep, usually withing just a few seconds.  Example
journactl attached.  When it freezes, the mouse can still move, but no other
input.  Cannot click, cannot switch to virtual terminals, cannot send REISUB,
cannot toggle off numlock (light frozen).  Only thing that fixes it is a reboot
of the computer.

Setting amdgpu.dc=0 appears to resolve the issue!  Went from freezing when
waking from sleep several times a day to >24 hours of uptime so far.

Also, when DC is enabled, displayport monitor will not wake from sleep.  The
only want I can get it to wake is xrandr --off and then --auto on the
DisplayPort.  I also want to mention that the displayport name changes every
time it sleeps and wakes (DisplayPort-1, DisplayPort-2, DisplayPort-3) even
though nothing is really being moved to a different port.

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